File size: 4,597 Bytes
1f21206 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | import { useCallback, useEffect, useRef, useState, type DragEvent, type RefObject } from 'react'
import { isTauriRuntime } from '../../lib/desktopRuntime'
import {
dataTransferHasFiles,
dataTransferToComposerAttachments,
pathsToComposerAttachments,
type ComposerAttachment,
} from '../../lib/composerAttachments'
type TauriDropPosition = {
x: number
y: number
}
type TauriDragDropPayload =
| { type: 'enter'; paths: string[]; position: TauriDropPosition }
| { type: 'over'; position: TauriDropPosition }
| { type: 'drop'; paths: string[]; position: TauriDropPosition }
| { type: 'leave' }
| { type: 'cancel' }
type TauriDragDropEvent = {
payload: TauriDragDropPayload
}
type UseComposerFileDropOptions = {
disabled?: boolean
panelRef: RefObject<HTMLElement | null>
onAttachments: (attachments: ComposerAttachment[]) => void
onError?: (error: unknown) => void
}
function isPointInsideElement(element: HTMLElement | null, position: TauriDropPosition): boolean {
if (!element) return false
const rect = element.getBoundingClientRect()
return (
position.x >= rect.left &&
position.x <= rect.right &&
position.y >= rect.top &&
position.y <= rect.bottom
)
}
export function useComposerFileDrop({
disabled = false,
panelRef,
onAttachments,
onError,
}: UseComposerFileDropOptions) {
const [isDragActive, setIsDragActive] = useState(false)
const dragDepthRef = useRef(0)
const disabledRef = useRef(disabled)
const onAttachmentsRef = useRef(onAttachments)
const onErrorRef = useRef(onError)
useEffect(() => {
disabledRef.current = disabled
}, [disabled])
useEffect(() => {
onAttachmentsRef.current = onAttachments
}, [onAttachments])
useEffect(() => {
onErrorRef.current = onError
}, [onError])
useEffect(() => {
if (!isTauriRuntime()) return
let disposed = false
let unlisten: (() => void) | undefined
void import('@tauri-apps/api/webview')
.then(({ getCurrentWebview }) =>
getCurrentWebview().onDragDropEvent((event) => {
if (disposed) return
const payload = event.payload as TauriDragDropEvent['payload']
if (payload.type === 'cancel' || payload.type === 'leave') {
dragDepthRef.current = 0
setIsDragActive(false)
return
}
const isInside = isPointInsideElement(panelRef.current, payload.position)
if (payload.type === 'enter' || payload.type === 'over') {
setIsDragActive(!disabledRef.current && isInside)
return
}
dragDepthRef.current = 0
setIsDragActive(false)
if (disabledRef.current || !isInside) return
const attachments = pathsToComposerAttachments(payload.paths)
if (attachments.length > 0) onAttachmentsRef.current(attachments)
}),
)
.then((nextUnlisten) => {
if (disposed) {
nextUnlisten()
return
}
unlisten = nextUnlisten
})
.catch((error) => {
onErrorRef.current?.(error)
})
return () => {
disposed = true
unlisten?.()
}
}, [panelRef])
const onDragEnter = useCallback((event: DragEvent) => {
if (disabled || !dataTransferHasFiles(event.dataTransfer)) return
event.preventDefault()
event.dataTransfer.dropEffect = 'copy'
dragDepthRef.current += 1
setIsDragActive(true)
}, [disabled])
const onDragOver = useCallback((event: DragEvent) => {
if (disabled || !dataTransferHasFiles(event.dataTransfer)) return
event.preventDefault()
event.dataTransfer.dropEffect = 'copy'
setIsDragActive(true)
}, [disabled])
const onDragLeave = useCallback((event: DragEvent) => {
if (disabled || !dataTransferHasFiles(event.dataTransfer)) return
event.preventDefault()
dragDepthRef.current = Math.max(0, dragDepthRef.current - 1)
if (dragDepthRef.current === 0) setIsDragActive(false)
}, [disabled])
const onDrop = useCallback((event: DragEvent) => {
if (disabled || !dataTransferHasFiles(event.dataTransfer)) return
event.preventDefault()
dragDepthRef.current = 0
setIsDragActive(false)
void dataTransferToComposerAttachments(event.dataTransfer)
.then((attachments) => {
if (attachments.length > 0) onAttachments(attachments)
})
.catch((error) => {
onError?.(error)
})
}, [disabled, onAttachments, onError])
return {
isDragActive,
dragHandlers: {
onDragEnter,
onDragOver,
onDragLeave,
onDrop,
},
}
}
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